CN213165786U

CN213165786U - PCB board drill bit

Info

Publication number: CN213165786U
Application number: CN202022134176.XU
Authority: CN
Inventors: 陈新建; 王小兵
Original assignee: Huizhou Yudinghong Technology Co ltd
Current assignee: Huizhou Yudinghong Technology Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-11
Anticipated expiration: 2030-09-25

Abstract

The utility model relates to a PCB board drill bit, including the pedestal, with the drilling rod that the pedestal is connected, the lower tip of drilling rod with pedestal contact connection, upper end are provided with the blade, the drilling rod digs and is equipped with first helicla flute and second helicla flute, first helicla flute with the equal spiral winding of second helicla flute is in the drilling rod, first helicla flute both ends extend to respectively drilling rod upper end and lower tip, second helicla flute both ends extend to respectively drilling rod upper end and lower tip, first helicla flute with the second helicla flute part overlaps. The utility model provides a PCB board drill bit has the range upon range of helicla flute of twice on the drilling rod to improve sediment thrust greatly, make the difficult adhesion of drilling sediment on the drilling rod, can adapt to the probing environment that the pine glues, and this PCB board drill bit can make through the angle that the PCB board drill bit was chewed when adjusting the fluting on original fluting equipment, need not to develop the brand-new fluting equipment pertinence, and it is low to show the equipment input cost who reduces the firm.

Description

PCB board drill bit

Technical Field

The utility model relates to a PCB field especially is about a PCB board bores and chews.

Background

PCB drilling is a key process in the whole production process of printed circuit boards. At present, the drilling of the PCB is mostly realized by a PCB numerical control drilling machine, and the most important part of the PCB numerical control drilling machine belongs to a drilling device. A drilling device on the existing PCB numerical control drilling machine mainly comprises a drill bit control mechanism, a drill bit, a presser foot cup and a workbench. When drilling, a PCB to be drilled is placed on a workbench, then the presser foot cup is controlled by the drill nozzle control mechanism to descend and press the PCB, a through hole which is coincident with the axis of the drill nozzle is formed in the presser foot cup and can be directly communicated with a place to be drilled on the PCB, then the drill nozzle is controlled by the drill nozzle control mechanism to penetrate through the through hole and abut against the PCB, and finally the drill nozzle is controlled by the drill nozzle control mechanism to rotate, so that the drilling operation can be carried out on the PCB.

Traditional PCB board drill bit has different structures such as single spiral, many spirals to the demand of different PCB boards is adapted to. Although the single spiral can adapt to a relatively loose and sticky drilling environment, people find that the existing single-spiral PCB drill bit is still difficult to adapt to some very loose and sticky drilling environments in actual production, and need to be improved urgently.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a PCB board drill bit has the range upon range of helicla flute of twice on the drilling rod to improve sediment thrust greatly, make the drilling slag be difficult for the adhesion on the drilling rod, can adapt to the probing environment that the pine glues, and this PCB board drill bit can make through the angle of PCB board drill bit when adjusting the fluting on original fluting equipment, need not to develop the brand-new fluting equipment pertinence, and it is low to show the equipment input cost that reduces the firm.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a PCB board drill bit, include the pedestal, with the drilling rod that the pedestal is connected, the lower tip of drilling rod with the pedestal contact is connected, the upper end is provided with the blade, the drilling rod digs and is equipped with first helicla flute and second helicla flute, first helicla flute with the equal spiral winding of second helicla flute is in the drilling rod, first helicla flute both ends extend to respectively drilling rod upper end and lower tip, second helicla flute both ends extend to respectively drilling rod upper end and lower tip, first helicla flute with the local overlapping of second helicla flute.

Preferably, the first helical groove and the second helical groove intersect.

Preferably, the first helical groove and the second helical groove intersect at a rib.

Preferably, the first helical groove and the second helical groove have the same depth.

Preferably, the upper end of the seat body is provided with an inclined surface.

Preferably, the upper end of the seat body is in contact connection with the lower end of the drill rod.

Preferably, the upper end part of the seat body and the lower end part of the drill rod are welded and fixed through soldering paste.

Preferably, the seat body is made of white iron.

Preferably, the drill rod is made of tungsten steel.

Preferably, the upper end of the drill rod is provided with two cutting edges which are symmetrically distributed.

The utility model discloses compare in prior art's beneficial effect and be:

the utility model discloses a PCB board drill bit has the range upon range of helicla flute of twice on the drilling rod to improve drilling slag thrust greatly, make the drilling slag be difficult for the adhesion on the drilling rod, can adapt to the probing environment that the pine glues, and this PCB board drill bit can make through the angle that the PCB board drill bit was chewed when adjusting the fluting on original fluting equipment, need not to develop the brand-new fluting equipment pertinence, show that the equipment input cost that reduces the firm is low. The joint of the two stacked spiral grooves is a rib, and the rib can better disperse the drilling slag in the two spiral grooves so as to further improve the thrust of the drilling slag and adapt to a loose and sticky drilling environment.

Drawings

Fig. 1 is a diagram of a structure of a drill bit of a PCB board according to an embodiment of the present invention.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to specific embodiments and drawings.

Referring to fig. 1, an embodiment of the present invention includes:

the utility model provides a PCB board drill bit, which comprises a base body 1, drilling rod 2 of being connected with pedestal 1, the lower tip and the 1 contact connection of pedestal of drilling rod 2, the upper end is provided with blade 3, drilling rod 2 digs and is equipped with first helicla flute 4 and second helicla flute 5, the equal spiral winding of first helicla flute 4 and second helicla flute 5 is at

drilling rod

2, 4 both ends of first helicla flute extend to drilling rod 2 upper end and lower tip respectively, 5 both ends of second helicla flute extend to drilling rod 2 upper end and lower tip respectively,

first helicla flute

4 and 5 local overlap of second helicla flute.

The first helical groove 4 and the second helical groove 5 intersect at a rib 6. The first helical groove 4 and the second helical groove 5 have the same depth. The upper end of the seat body 1 is provided with an inclined surface 7. The upper end part of the seat body 1 is in contact connection with the lower end part of the drill rod 2. The upper end part of the seat body 1 and the lower end part of the drill rod 2 are welded and fixed through soldering paste. The base body 1 is made of white iron. The drill rod 2 is made of tungsten steel. Two cutting edges are arranged at the upper end part of the drill rod 2 and are symmetrically distributed.

The PCB board drill bit of this embodiment has the range upon range of helicla flute of twice on the drilling rod to improve the drilling slag thrust greatly, make the drilling slag be difficult for the adhesion on the drilling rod, can adapt to the probing environment of pine adhesion, and this PCB board drill bit can be made through the angle of PCB board drill bit when adjusting the fluting on original fluting equipment, need not to develop the brand-new fluting equipment pertinence, and it is low to show the equipment input cost who reduces the firm. The joint of the two stacked spiral grooves is a rib, and the rib can better disperse the drilling slag in the two spiral grooves so as to further improve the thrust of the drilling slag and adapt to a loose and sticky drilling environment.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one section", "top", "middle", "another section", "upper", "one side", "top", "inner", "front", "center", "two sections", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PCB board drill bit, its characterized in that, including pedestal (1), with drilling rod (2) that pedestal (1) is connected, the lower tip of drilling rod (2) with pedestal (1) contact is connected, upper end is provided with blade (3), drilling rod (2) are dug and are equipped with first helicla flute (4) and second helicla flute (5), first helicla flute (4) with the equal spiral winding of second helicla flute (5) is in drilling rod (2), first helicla flute (4) both ends extend to respectively drilling rod (2) upper end and lower tip, second helicla flute (5) both ends extend to respectively drilling rod (2) upper end and lower tip, first helicla flute (4) with second helicla flute (5) local overlap.

2. A PCB board drill according to claim 1, wherein the first helical flute (4) and the second helical flute (5) intersect.

3. A PCB board drill bit as claimed in claim 1, wherein the first helical groove (4) and the second helical groove (5) intersect at a rib (6).

4. A PCB board drill according to claim 1, characterised in that the first helical flute (4) and the second helical flute (5) have the same depth.

5. The PCB board drill bit of claim 1, wherein the upper end of the seat body (1) is provided with an inclined surface (7).

6. The PCB board drill according to claim 1, wherein the upper end of the seat body (1) is in contact connection with the lower end of the drill rod (2).

7. The PCB board drill bit of claim 1, wherein the upper end of the seat body (1) and the lower end of the drill rod (2) are fixed by soldering paste.

8. The PCB board drill according to claim 1, wherein the holder body (1) is made of white iron.

9. The PCB board drill according to claim 1, wherein the drill rod (2) is made of tungsten steel.

10. The PCB board drill bit of claim 1, characterized in that the upper end of the drill rod (2) is provided with two cutting edges, and the two cutting edges are symmetrically distributed.